Air King BFQ90 High Performance Exhaust FansThe High Performance Exhaust Fan Series Features an Unique Snap-In Installation System. The Included Bracket Nails or Screws to the Ceiling Joist Allowing the Fan Housing to "Snap-In". Connect the Wiring and the Ducting, Install the Easy Fitting Grill and You are Done. A Bath Fan Installation can Now be Done in Minutes. The Durable High Impact Plastic Housing Ensures Quiet Operation and Maximum Performance. High Performance, Attractive Stylized Grill and Quick Installation Make the High Performance Exhaust Fan Series Right for the Job. UL Listed for Installation over a Tub or Shower on a GFCI Circuit HVI2100 Certified Motors Suitable for Continuous Operation Easily Installs Using the Included Snap-In Mounting System and are Available in Contractor Packs (4 Housings and 4 mbgs) Wire Nuts and Romex Connector are Included CFM (Air Movement): 90 Sones (Sound): 2.5 Exhaust Capacity: 80 - 110 sq. ft. Duct Size: 4" Amps: 0.45